FM 30-42 Identification of Foreign Armored Vehicles, German, Japanese, Russian, and Italian 1942-10-03
"This manual, containing illustrations with explanatory data relative to foreign armored vehicles, German, Japanese, Russian, and Italian, is published for limited distribution. When illustrations are not given, blank spaces have been left so that they may be added when provided. The manual will be used for instruction of officers and men in the appearance and general characteristics of armored vehicles and will be safeguarded as prescribed in AR 380-5."
Digitized by the Combined Arms Research Library Digital Library, US Army Combined Arms Center. http://cgsc.cdmhost.com/cdm/